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51.
A hierarchical framework for stream habitat classification: Viewing streams in a watershed context 总被引:44,自引:8,他引:44
Frissell Christopher A. Liss William J. Warren Charles E. Hurley Michael D. 《Environmental management》1986,10(2):199-214
Environmental Management - Classification of streams and stream habitats is useful for research involving establishment of monitoring stations, determination of local impacts of land-use practices,... 相似文献
52.
Zuo Tong How Ina Kristian Francesco Busetti Kathryn L. Linge Cynthia A. Joll 《环境科学学报(英文版)》2017,29(8):2-18
This paper is a critical review of current knowledge of organic chloramines in water systems,including their formation, stability, toxicity, analyticalmethods for detection, and their impact
on drinking water treatment and quality. The term organic chloramines may refer to any
halogenated organic compounds measured as part of combined chlorine (the difference
between themeasured free and total chlorine concentrations), andmay include N-chloramines,
N-chloramino acids, N-chloraldimines and N-chloramides. Organic chloramines can form
when dissolved organic nitrogen or dissolved organic carbon react with either free chlorine
or inorganic chloramines. They are potentially harmful to humans and may exist as an
intermediate for other disinfection by-products. However, little information is available on the
formation or occurrence of organic chloramines in water due to a number of challenges. One of
the biggest challenges for the identification and quantification of organic chloramines in water
systems is the lack of appropriate analytical methods. In addition, many of the organic
chloramines that formduring disinfection are unstable,which results in difficulties in sampling
and detection. To date research has focussed on the study of organic monochloramines.
However, given that breakpoint chlorination is commonly undertaken in water treatment
systems, the formation of organic dichloramines should also be considered. Organic
chloramines can be formed frommany different precursors and pathways. Therefore, studying
the occurrence of their precursors in water systems would enable better prediction and
management of their formation. 相似文献
53.
This paper investigates the suitability and limitations of the Strategic Niche Management framework in the context of emerging economies of South and East Asia. We explore several learning-based approaches to development projects that are part of the academic and practitioner field of development studies. The approaches show similarities with SNM but they reflect the developing-country context within which they were framed, and are also more geared towards local community development and capacity building. We apply these approaches to four biomass energy projects in rural India to identify determinants of success and failure. We then discuss how these findings compare with the insights that an SNM analysis would have offered. We arrive at the following conclusions. First, the great strengths of SNM are its explicit conceptualisation of environmental sustainability and its endogenous treatment of the larger context. Second, the learning-based development approaches hone in on the complexities of local management and stakeholder organisation. Third, they also bring out the great importance of local institutions such as traditional status and power differences. Fourth, we conclude that SNM holds considerable promise for application in a developing Asian context, but that its usefulness and relevance in that setting could be enhanced by incorporating these additional issues. 相似文献
54.
Thakur Ina Verma Anoop Örmeci Banu Sangal Vikas 《Environmental science and pollution research international》2022,29(48):72247-72259
Environmental Science and Pollution Research - The study reports the applications of waste-derived visibly active Fe-TiO2 composite for the inactivation of E. coli present in water. The Fe/TiO2... 相似文献